Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nX7Y9-0000s0-4Q for pgsql-hackers@arkaria.postgresql.org; Wed, 23 Mar 2022 20:25:45 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1nX7Y8-0002Zf-26 for pgsql-hackers@arkaria.postgresql.org; Wed, 23 Mar 2022 20:25:44 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nX7Y7-0002XH-Om for pgsql-hackers@lists.postgresql.org; Wed, 23 Mar 2022 20:25:43 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nX7Y5-00047w-AW for pgsql-hackers@postgresql.org; Wed, 23 Mar 2022 20:25:43 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 22NKPa6g2796463; Wed, 23 Mar 2022 16:25:36 -0400 From: Tom Lane To: Simon Riggs cc: Robert Haas , Peter Eisentraut , PostgreSQL Hackers Subject: Re: Parameter for planner estimate of recursive queries In-reply-to: References: <91533bcd-c3a3-5844-7449-43aceede2117@enterprisedb.com> <2770446.1648056989@sss.pgh.pa.us> Comments: In-reply-to Simon Riggs message dated "Wed, 23 Mar 2022 19:37:02 -0000" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2796461.1648067136.1@sss.pgh.pa.us> Date: Wed, 23 Mar 2022 16:25:36 -0400 Message-ID: <2796462.1648067136@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Simon Riggs writes: >> [New patch version pending] Do you have any objection if I rename the GUC to recursive_worktable_factor? That seems a bit clearer as to what it does, and it leaves more room for other knobs in the same area if we decide we need any. regards, tom lane